Leecraft Zero Table Saw Insert 15-1/8 in. x 3-3/4 in. is unquestionably table saw zero insert available. Crafted from high-density phenolic, this insert features leveling screws and side "snug-ness" screws to ensure a fit, lying flat and true every time. Its slick sliding melamine surface provides smooth operation, while an anti-lift pin keeps the rear securely in place. Designed to fit Ridgid R4512 and Grizzly G0771 models without a riving knife slot, this insert reliable performance and durability. If your saw model is not listed, be sure to explore other inserts with similar dimensions in our selection for an exact match. Colors may vary. Model Number: RG-6